Thread command

  • Thread ID Displays stack information about a thread

    image-20210228165931712

  • Thread-n Displays the busiest threads

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  • Thread-b finds the thread currently blocking another thread

    image-20210228170212626

jad

  • Decompile class files online

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stack

  • Look at the method call chain

    image-20210228170844390

watch

  • Observe the argument and return value of the method. The effect is the same as that of the -f argument

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  • Observe the method input

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  • Observe the return value at the end of the method

    image-20210228171836368

  • Observe the return value of the exception thrown by the method

    image-20210228171914019

  • Observe the return value at the end of the method, specifying the depth of view with the -x argument

    image-20210228172043331

  • Observe abnormal information

    image-20210228172217155

  • Filter according to the input parameter

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  • Filter by method execution time

    image-20210228172504245

  • View object property values

    image-20210228172814612

monitor

  • -c indicates the statistical period

    image-20210228173844375

trace

  • Prints the time taken for method calls

    image-20210228174342736

  • Input method Time Includes JDK methods

    image-20210228174454663

  • Filter by time

    image-20210228174621063